SOLUTION: Look at Graph B to the right. What is the slope-intercept form of the equation of the line shown in the graph? http://img823.imageshack.us/i/55725729.jpg/

Question 355575: Look at Graph B to the right. What is the slope-intercept form of the equation of the line shown
in the graph?

http://img823.imageshack.us/i/55725729.jpg/
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Looking at the graph below

The graph of the line passes through the points

and

. So let's find the equation of the line through these points.

First let's find the slope of the line through the points

and

Note:

is the first point

. So this means that and .
Also,

is the second point

. So this means that and .

Start with the slope formula.

Plug in , , , and

Subtract from to get

Subtract from to get

So the slope of the line that goes through the points

and

is

Now let's use the point slope formula:

Start with the point slope formula

Plug in , , and

Rewrite as

Distribute

Multiply

Subtract 4 from both sides.

Combine like terms.

So the equation that goes through the points

and

is

If you need more help, email me at jim_thompson5910@hotmail.com

Also, feel free to check out my tutoring website

Jim
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